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Over the last decade, demand for subsea well intervention work in the Gulf of Mexico has continued to rise. However, with pressures up to 9,950 psi [68.6 MPa] and total depths routinely exceeding 20,000 ft [6,096 m], these wells present some of the industry’s toughest operational, safety,
and economic challenges. To ensure long-term commercial viability of these important assets,
Gulf of Mexico producers needed to conduct innovative, efficient well intervention operations.

Coil Tubing Services pioneered a wide range of CT services

Coil Tubing Services, a Schlumberger company, introduced CT to the Q4000, a purpose-built, multiservice, dynamically positioned vessel, to help meet the Gulf of Mexico’s increasing demand for subsea well intervention and abandonment services. While CT interventions from a vessel represent only a fraction of total well workover activity throughout the Gulf of Mexico, deploying CT services using this new vessel enabled operators to service live wells and reduce workover costs.